Use unotoosl::WeakReference to avoid a dynamic_cast

Change-Id: I46c122e800c63038cf7fd650ebb6f0115c6e8c78
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/144330
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

1 files changed, 2 insertions, 6 deletions

diff --git a/sdext/source/presenter/PresenterController.cxx b/sdext/source/presenter/PresenterController.cxx
index a56071f9ec3f..e9831ac749d5 100644
--- a/sdext/source/presenter/PresenterController.cxx
+++ b/sdext/source/presenter/PresenterController.cxx
@@ -83,7 +83,7 @@ PresenterController::InstanceContainer PresenterController::maInstances;
 }
 
 PresenterController::PresenterController (
-    css::uno::WeakReference<css::lang::XEventListener> xScreen,
+    unotools::WeakReference<PresenterScreen> xScreen,
     const Reference<XComponentContext>& rxContext,
     const Reference<frame::XController>& rxController,
     const Reference<presentation::XSlideShowController>& rxSlideShowController,
@@ -1156,11 +1156,7 @@ void PresenterController::UpdatePendingSlideNumber (const sal_Int32 nPendingSlid
 
 void PresenterController::SwitchMonitors()
 {
-    Reference<lang::XEventListener> xScreen( mxScreen );
-    if (!xScreen.is())
-        return;
-
-    PresenterScreen *pScreen = dynamic_cast<PresenterScreen *>(xScreen.get());
+    rtl::Reference<PresenterScreen> pScreen( mxScreen );
     if (!pScreen)
         return;